First-time director Egor Abramenko presents a sci-fi horror thriller set during the Cold War era about Russian cosmonaut Konstantin (Pyotr Fyodorov) who returns to earth after surviving a space accident. However, his military superiors find that an alien being is lodged inside of his body. They tap Tatiana (Oksana Akinshina), a controversial young doctor who is recruited to assess Konstantin's condition. As the alien creature manifests itself, Tatiana and the Russian military develop conflicting approaches regarding the situation.